21
charge = 0
 C 2.172675 0.388795 -3.575298
 C 2.791111 0.512237 -2.198698
 N 4.058299 1.211501 -2.255544
 C 4.661534 1.424226 -0.958074
 C 5.985876 2.150723 -1.084313
 N 6.587965 2.368331 0.212807
 C 7.853673 3.063148 0.141896
 H 1.233029 -0.165961 -3.532590
 H 2.851532 -0.127438 -4.257167
 H 1.954949 1.374294 -3.998219
 H 2.978352 -0.486386 -1.787822
 H 2.074417 0.997888 -1.511747
 H 3.924926 2.105433 -2.715870
 H 4.832379 0.440120 -0.502698
 H 4.013646 1.982002 -0.260559
 H 5.815992 3.133797 -1.542619
 H 6.635666 1.591688 -1.779496
 H 6.714742 1.477513 0.677798
 H 7.692437 4.078513 -0.231616
 H 8.594665 2.582036 -0.518699
 H 8.287842 3.145637 1.140337